Calling all trainiacs! This Saturday is National Train Day, and lucky you– DC is home to one of the biggest events to celebrate it! From 10 AM to 3 PM, head over to Union Station to meet American Idol’s Randy Jackson (not sure how he’s related to trains, but that’s cool), listen to some live music, or check out some train equipment, including the train car that President Obama rode in to the inauguration. There will also be exhibits all day that explore how trains are related to economic development, the green aspects of rail travel, and photos showing the connection between the national landscape and trains. Think Joe Biden will stop by?